Using packed bed reactor filled with immobilized cells to produce D-mandelic acid methyl ester, 25 days later the conversion efficiency can be still sustained in 80% and the ee value is more than 95% when the charge was 0 2 mmol/(d·g) wet cell.是什么意思_Using packed bed reactor filled with immobilized cells to produce D-mandelic acid methyl ester, 25 days later the conversion efficiency can be still sustained in 80% and the ee value is more than 95% when the charge was 0 2 mmol/(d·g) wet cell.在线翻译_英语_读音_用法_例句